Answer:
7/8
Step-by-step explanation:
Step-by-step explanation:
the question is z²=1
taking square root on both sides
√z² = √1
the square root and the square cancel out each other
it gives
z=±1
that means either z=+1 or z=-1
so the solutions are 1 and -1
Answer:
-1
Step-by-step explanation:
In great east japan a tsunami happened
Answer:
Step-by-step explanation:
a. (-4x^2-7) - (-4a^2-7) / x-a
b. (-4(x-h)^2-7) - (-4x^2-7) / h
since there are no numbers to plug in for the variables (a, h, x) there is no possible numerical value for the equations. The format of the equations seems familiar in the sense of limits for calculus, but I could be wrong.